CN108752035A - The foamed ceramic light weight board and preparation method thereof produced with granite waste material - Google Patents
The foamed ceramic light weight board and preparation method thereof produced with granite waste material Download PDFInfo
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- CN108752035A CN108752035A CN201810686912.7A CN201810686912A CN108752035A CN 108752035 A CN108752035 A CN 108752035A CN 201810686912 A CN201810686912 A CN 201810686912A CN 108752035 A CN108752035 A CN 108752035A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 239000002699 waste material Substances 0.000 title claims abstract description 36
- 239000010438 granite Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title description 3
- 239000002994 raw material Substances 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 41
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000012216 screening Methods 0.000 claims abstract description 30
- 239000003595 mist Substances 0.000 claims abstract description 23
- 239000004088 foaming agent Substances 0.000 claims abstract description 21
- 238000000498 ball milling Methods 0.000 claims abstract description 20
- 239000004927 clay Substances 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 238000010792 warming Methods 0.000 claims description 55
- 238000010438 heat treatment Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 17
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 12
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 12
- 238000010583 slow cooling Methods 0.000 claims description 11
- 238000005498 polishing Methods 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 206010021703 Indifference Diseases 0.000 abstract description 5
- 239000011265 semifinished product Substances 0.000 description 14
- 238000010304 firing Methods 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910052878 cordierite Inorganic materials 0.000 description 4
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000132536 Cirsium Species 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C04B33/13—Compounding ingredients
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
- C04B2235/3267—MnO2
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Abstract
The invention discloses a kind of methods producing foamed ceramic light weight board with granite waste material, including：(1) raw material is weighed by formula, the raw material includes:Granite waste material 70-90%, clay 5-20%, foaming agent 0.01-5%, manganese dioxide 0.1-5%；(2) raw material is subjected to ball-milling treatment；(3) raw material after ball milling is subjected to screening process by screening plant；(4) raw material after screening is subjected to mist projection granulating；(5) raw material after mist projection granulating is subjected to cloth, obtains green body；(6) green body is burnt by roller kilns or tunnel oven, obtains finished product.Correspondingly, invention additionally discloses a kind of using foamed ceramic light weight board made from the above method.Using the present invention, the same section of the foamed ceramic light weight board, stomata indifference from top to bottom, bubble uniformity is high, can be both burnt into using tunnel oven, can also use roller kiln burning at.
Description
Technical field
The present invention relates to ceramic wafer technical field more particularly to a kind of foamed ceramic thistle boards produced with granite waste material
Material and preparation method thereof.
Background technology
Basis material used in foamed ceramic comes from ceramics factory's waste material and industrial waste the like waste, and (ceramic polishing is useless
Slag or cinder or stone material waste residue etc.), if these wastes are not handled, arbitrarily accumulation or landfill will pollute the environment,
Waste resource.
The foamed ceramic product is light-weight with its, intensity is high, fire prevention, antidetonation, heat-insulated, sound insulation, strong modularity, is easy to remove
Fortune, it is widely applicable the advantages that gradually start to use in China.Again because its raw material is cinder, ceramic polishing waste residue, slag
Etc. solid waste, in terms of resource makes full use of with environmental protection have positive social effect.
The prior art also has produces foamed ceramic light weight board using granite waste material, such as：Documents 1 are publication number
The patent of invention of CN106187134A, it discloses one kind being based on granite foamed light materials for wall, including following components：Flower
Hilllock rock 75-90%, clay 5-20%, fluxing agent 0-10%, foaming agent 0.05-5%, stabilizer 0.05-5%, degumming agent 0.05-
5%.Wherein, the stabilizer is the one or more in the oxide of yttrium, cerium.
However, as shown in Figure 1, foamed ceramic light weight board made from the prior art, internal to form multilayer stomata.It is sending out
During bubble, since foamed time is longer, and it is affected by gravity, lower layer's stomata can be crushed so that the entirety of product
Uniformity is bad.
Moreover, because existing foamed bricks entirety brick is thicker, the more difficult oxidation of formula system, the formula of foamed ceramic
System determines that it must be burnt into using tunnel oven, and tunnel oven is burnt into of high cost, and firing period is long, and temperature is higher.The thickness of comparison diagram 1
Degree is 100-500mm foamed ceramic light weight boards, is burnt into 30-300 minutes, is the finished product that can not obtain good quality.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of foamed ceramic thistle board produced with granite waste material
Material, same section, stomata indifference, bubble uniformity height can be both burnt into using tunnel oven, and can also use roller-way from top to bottom
Klining at.
The technical problems to be solved by the invention also reside in, and provide a kind of foamed ceramic lightweight produced with granite waste material
The method of plank, it is simple for process, it can be applicable in different firing process, and firing period is short, production cost is low.
In order to solve the above technical problem, the present invention provides a kind of foamed ceramic light weight board is produced with granite waste material
Method, including：
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 70-90%, clay 5-20%, foaming agent 0.01-5%, manganese dioxide 0.1-5%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns or tunnel oven, obtains finished product.
As the improvement of said program, the raw material includes：
Granite waste material 75-85%, clay 10-18%, foaming agent 0.01-5%, manganese dioxide 0.1-4%.
As the improvement of said program, the clay is one or more in black mud, kaolin, municipal sludge, ooze.
As the improvement of said program, the foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the grinding head for polishing returns
The main component of rewinding includes silicon carbide and resin.
As the improvement of said program, the roller kiln burning at time be 10-20 hour, the tunnel oven be burnt into when
Between be 15-24 hours.
As the improvement of said program, the roller kiln burning at including：
Saggar is used on roller kilns, saggar is integral type saggar or pin-connected panel saggar, using artificial or machine cloth,
It is burnt under 1150-1220 DEG C of temperature condition.
As the improvement of said program, the process for calcining of the roller kilns includes：
It is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, by the 0 DEG C of heating for being warming up to 400 DEG C speed
Rate is 10-20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
It is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating
Rate is 1-8 DEG C/min；
Slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, the cooling for being cooled to 50 DEG C by 600 DEG C
Rate is 1-4 DEG C/min.
As the improvement of said program, the raw material after mist projection granulating, moisture content 5-10%.
Correspondingly, the invention discloses a kind of foamed ceramic light weight board produced with granite waste material, use above-mentioned
Method be made.
As the improvement of said program, compression strength >=4.5Mpa of the foamed ceramic light weight board, bulk density is
200-1100Kg/m3, thermal coefficient≤0.15W/m DEG C, water absorption rate < 2%.
Implement the present invention, has the advantages that：
The present invention devises a completely new foamed ceramic light weight board formula system, including granite waste material 70-90%,
Clay 5-20%, foaming agent 0.01-5%, manganese dioxide 0.1-5%.The manganese dioxide of 0.1-5%, Ke Yiti is added in the present invention
The uniformity of high bubble, even if in same section, stomata indifference from top to bottom so that the whole uniformity of product is good.
Moreover, the present invention both can use tunnel oven to realize common firing, it can also be realized and be rapidly fired to roller kilns.
Finally, foamed ceramic light weight board good quality produced by the present invention, compression strength >=4.5Mpa, bulk density：
200-1100Kg/m3, thermal coefficient：≤ 0.15W/m DEG C, combustion rating：A1 grades, water absorption rate：< 2%, radioactive indicator：IRa≤
1.0, Ir≤1.0。
Description of the drawings
Fig. 1 is the sectional view of prior art foamed ceramic light weight board；
Fig. 2 is the flow chart of the method for present invention granite waste material production foamed ceramic light weight board.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Fig. 2, the present invention provides a kind of method producing foamed ceramic light weight board with granite waste material, including：
S101, raw material is weighed by formula, the raw material includes:
Granite waste material 70-90%, clay 5-20%, foaming agent 0.01-5%, manganese dioxide 0.1-5%.
% in above-mentioned raw materials formula is weight percentage.
Preferably, the raw material includes：Granite waste material 75-85%, clay 10-18%, foaming agent 0.01-5%, dioxy
Change manganese 0.1-4%.
More preferably, the raw material includes：Granite waste material 78-82%, clay 12-16%, foaming agent 0.01-3%, dioxy
Change manganese 0.1-3%.
Wherein, the clay is one or more in black mud, kaolin, municipal sludge, ooze.The foaming agent is carbon
The main component of SiClx or grinding head for polishing reclaimed materials, the grinding head for polishing reclaimed materials includes silicon carbide and resin.
Present invention material based on granite waste material reduces the addition of foaming agent, and the titanium dioxide of 0.1-5% is added
Manganese can improve the uniformity of bubble, even if in same section, stomata indifference from top to bottom so that the entirety of product is
Even property is good.The stomata of foamed ceramic light weight board entirety section is circular hole, and pore size from top to bottom is almost the same, is burnt
At uniform pore diameter it is good.
Manganese dioxide is amphoteric oxide, it is a kind of black powder solid highly stable under room temperature.Meet reducing agent
When, oxidisability is shown as, when meeting strong oxidizer, shows as reproducibility.The prior art usually using manganese dioxide as oxidant or
Catalyst uses.The present invention is used manganese dioxide as bubble stabilizer, manganese dioxide can by with after the reacting of formula,
So that the wall of stomata is toughened up, while keeping the uniformity of formula more preferable, even if indifference if same section hole from top to bottom
It is different, it avoids stomata from being crushed, improves the uniformity of bubble, the whole uniformity of product is good.
The foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the main component of the grinding head for polishing reclaimed materials includes carbon
SiClx and resin.Silicon carbide is a kind of expanded material, and the presence of the material makes it in sintering procedure unlike conventional ceramic
It shrinks, is expansion instead, to make high-strength light ceramic wafer for building more hold than traditional ceramics plate in size and thickness
It is easy to do to big and thick.
S102, raw material is subjected to ball-milling treatment；
S103, the raw material after ball milling is subjected to screening process by screening plant；
S104, the raw material after screening is subjected to mist projection granulating；
Raw material after mist projection granulating, moisture content 5-10%.
S105, the raw material after mist projection granulating is subjected to cloth, obtains green body；
S106, green body is burnt by roller kilns or tunnel oven, obtains semi-finished product；
S107, semi-finished product are ground by cutting, obtain finished product.
As a result of completely new formula system, the present invention breaches traditional foamed ceramic plate and can only be burnt by tunnel oven
Limitation, common firing can be both realized by tunnel oven, can also be realized and be rapidly fired to by roller kilns.
Specifically, the roller kiln burning at including：High temperature sagger is used on roller kilns, using artificial or machine cloth,
It is burnt under 1150-1220 DEG C of temperature condition.Wherein, high temperature sagger can integral type, also can be horizontal using SiC on club
Beam setting support, holder upper berth mullite or silicon carbide or cordierite backing plate, building coaming plate on backing plate, (coaming plate material can be not
Come stone, silicon carbide or cordierite) the pin-connected panel saggar that is built into.
Tunnel oven is burnt into：SiC crossbeam setting supports, holder upper berth mullite or carbonization are utilized on the kiln car of tunnel oven
Silicon or cordierite backing plate build the casket that coaming plate (coaming plate material can be mullite or silicon carbide or cordierite) is built on backing plate
Alms bowl utilizes artificial or machine cloth, 1150-1220 DEG C of firing temperature.
Therefore, the present invention can use roller kilns realization be rapidly fired to, roller kiln burning at time be 10-20 hours, again
It can be burnt into using tunnel oven, the time of tunnel oven firing is 15-24 hours, and the prior art can only all use tunnel oven
Firing (period is 24-26 hours).
Further, the process for calcining of the roller kilns includes：
It is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, by the 0 DEG C of heating for being warming up to 400 DEG C speed
Rate is 10-20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
It is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating
Rate is 1-8 DEG C/min；
Slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, the cooling for being cooled to 50 DEG C by 600 DEG C
Rate is 1-4 DEG C/min.
Preferably, the sintering curve of the roller kilns includes：
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, the liter for being warming up to 400 DEG C by 0 DEG C
Warm rate is 13-17 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 4-6 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 4-6 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 5-7 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall is 1-3 DEG C/min.
More preferably, the sintering curve of the roller kilns includes：
(1) it is warming up to 800-900 DEG C, and keeps the temperature 0-30min at 800-900 DEG C, wherein the liter for being warming up to 400 DEG C by 0 DEG C
Warm rate is 15 DEG C/min, and the heating rate for being warming up to 800 DEG C by 400 DEG C is 5 DEG C/min；
(2) it is warming up to 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein is warming up to 1150 DEG C by 800 DEG C
Heating rate is 5 DEG C/min；
(3) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1150 DEG C are 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Compared with prior art, low temperature and fast firing may be implemented in firing process of the invention, by the oxidation reaction of formula
Phases-time substantially reduces, and firing period shortens, output increased, and the energy consumption of unit product reduces.The foamed ceramic light weight board
Yield is not only increased using roller kilns firing process, also as save the energy, energy consumption of unit product reduces 10-30%.
Correspondingly, the invention discloses a kind of foamed ceramic light weight board produced with granite waste material, use above-mentioned
Method be made.Foamed ceramic light weight board obtained by the present invention is done into technology detection, it is as a result as follows：
| Project | The present invention |
| Compression strength | ≥4.5Mpa |
| Bulk density | 200-1100Kg/m3 |
| Thermal coefficient | ≤0.15W/m℃ |
| Combustion rating | A1 grades |
| Water absorption rate | < 2% |
| Radioactive indicator | IRa≤ 1.0, Ir≤1.0 |
Therefore, the present invention is on the basis of solving foamed ceramic light weight board internal porosity, it is ensured that it has good
Compression strength, and heat insulation effect is good, good flame resistance, and radioactive indicator is low.
With specific embodiment, the present invention is further explained below
Embodiment 1
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 70%, clay 20%, foaming agent 5%, manganese dioxide 5%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
Wherein, the process for calcining of roller kilns includes：
(a) 800 DEG C are warming up to, and keeps the temperature 20min at 800 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 10
DEG C/min, the heating rate for being warming up to 800 DEG C by 400 DEG C is 3 DEG C/min；
(b) 1150 DEG C are warming up to, and 40min is kept the temperature in the highest temperature, wherein by the 800 DEG C of heating for being warming up to 1150 DEG C speed
Rate is 3 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1150 DEG C are 3 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 1 DEG C/min.
Embodiment 2
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 80%, clay 18%, foaming agent 1%, manganese dioxide 1%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
The process for calcining of roller kilns includes：
(a) 820 DEG C are warming up to, and keeps the temperature 15min at 820 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 820 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1170 are warming up to, and 30min is kept the temperature in the highest temperature, wherein the heating rate for being warming up to 1170 DEG C by 820 DEG C
For 4 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1170 DEG C are 4 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 3
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 75%, clay 20%, foaming agent 2%, manganese dioxide 3%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
The process for calcining of roller kilns includes：
(a) 830 DEG C are warming up to, and keeps the temperature 25min at 830 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 830 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1180 DEG C are warming up to, and 0-60min is kept the temperature in the highest temperature, wherein the heating for being warming up to 1180 DEG C by 830 DEG C
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1180 DEG C are 5 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 4
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 85%, clay 10%, foaming agent 4%, manganese dioxide 1%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
The process for calcining of roller kilns includes：
(a) 850 DEG C are warming up to, and keeps the temperature 30min at 850 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 16
DEG C/min, the heating rate for being warming up to 850 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1200 DEG C are warming up to, and 50min is kept the temperature in the highest temperature, wherein by the 850 DEG C of heating for being warming up to 1200 DEG C speed
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1200 DEG C are 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 5
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 88%, clay 7%, foaming agent 1%, manganese dioxide 4%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
The process for calcining of roller kilns includes：
(a) 860 DEG C are warming up to, and keeps the temperature 10min at 860 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 17
DEG C/min, the heating rate for being warming up to 860 DEG C by 400 DEG C is 6 DEG C/min；
(b) 1210 DEG C are warming up to, and 30min is kept the temperature in the highest temperature, wherein by the 860 DEG C of heating for being warming up to 1210 DEG C speed
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1210 DEG C are 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Embodiment 6
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 90%, clay 5%, foaming agent 3%, manganese dioxide 2%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt by roller kilns, obtains semi-finished product；
(7) semi-finished product are ground by cutting, obtain finished product.
The process for calcining of roller kilns includes：
(a) 900 DEG C are warming up to, and keeps the temperature 30min at 900 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 20
DEG C/min, the heating rate for being warming up to 900 DEG C by 400 DEG C is 8 DEG C/min；
(b) 1220 DEG C are warming up to, and 60min is kept the temperature in the highest temperature, wherein by the 900 DEG C of heating for being warming up to 1220 DEG C speed
Rate is 8 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1220 DEG C are 9 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 4 DEG C/min.
Foamed ceramic light weight board obtained by embodiment 1-6 is done into technology detection, it is as a result as follows：
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of method producing foamed ceramic light weight board with granite waste material, which is characterized in that including：
(1) raw material is weighed by formula, the raw material includes:
Granite waste material 70-90%, clay 5-20%, foaming agent 0.01-5%, manganese dioxide 0.1-5%；
(2) raw material is subjected to ball-milling treatment；
(3) raw material after ball milling is subjected to screening process by screening plant；
(4) raw material after screening is subjected to mist projection granulating；
(5) raw material after mist projection granulating is subjected to cloth, obtains green body；
(6) green body is burnt into, then grinding after cutting by roller kilns or tunnel oven, obtains finished product.
2. the method as described in claim 1, which is characterized in that the raw material includes：
Granite waste material 75-85%, clay 10-18%, foaming agent 0.01-5%, manganese dioxide 0.1-4%.
3. method as claimed in claim 1 or 2, which is characterized in that the clay is black mud, kaolin, municipal sludge, ooze
In it is one or more.
4. method as claimed in claim 1 or 2, which is characterized in that the foaming agent be silicon carbide or grinding head for polishing reclaimed materials,
The main component of the grinding head for polishing reclaimed materials includes silicon carbide and resin.
5. the method as described in claim 1, which is characterized in that the roller kiln burning at time be 10-20 hours, the tunnel
Road klining at time be 15-24 hours.
6. method as claimed in claim 5, which is characterized in that the roller kiln burning at including：
Saggar is used on roller kilns, saggar is integral type saggar or pin-connected panel saggar, using artificial or machine cloth, in 1150-
It is burnt under 1220 DEG C of temperature condition.
7. method as claimed in claim 6, which is characterized in that the process for calcining of the roller kilns includes：
It is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, the heating rate that 400 DEG C are warming up to by 0 DEG C is
10-20 DEG C/min, T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
It is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating rate
For 1-8 DEG C/min；
Slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, the rate of temperature fall for being cooled to 50 DEG C by 600 DEG C
For 1-4 DEG C/min.
8. the method as described in claim 1, which is characterized in that the raw material after mist projection granulating, moisture content 5-10%.
9. a kind of foamed ceramic light weight board produced with granite waste material, which is characterized in that any using such as claim 1-8
Method described in is made.
10. foamed ceramic light weight board as claimed in claim 9, which is characterized in that the foamed ceramic light weight board resists
Compressive Strength >=4.5Mpa, bulk density 200-1100Kg/m3, thermal coefficient≤0.15W/m DEG C, water absorption rate < 2%.
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| CN110563443A (en) * | 2019-08-19 | 2019-12-13 | 福建德胜新建材有限公司 | Preparation method of foamed ceramic |
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Application publication date: 20181106 |